Respuesta :

Given a linear equation [tex]\displaystyle{y=mx[/tex], the constant of proportionality is 

                                                [tex]\displaystyle{m[/tex], which is [tex]\displaystyle{\frac{y}{x} [/tex].

Thus, the constant of proportionality of [tex]\displaystyle{y=4x[/tex] is [tex]\displaystyle{\frac{y}{x} [/tex] which is 4.


Answer: 4

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